cc: Replace Pass() with std::move() in some subdirs.

cc/layers/layer_utils_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer_utils.h"
 
 #include "cc/animation/transform_operations.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_impl_task_runner_provider.h"
@@ skipping 25 matching lines @@
   LayerImpl* parent() { return parent_; }
   LayerImpl* child() { return child_; }
 
  private:
   static scoped_ptr<LayerImpl> CreateThreeNodeTree(
       LayerTreeHostImpl* host_impl) {
     scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl->active_tree(), 1);
     root->AddChild(LayerImpl::Create(host_impl->active_tree(), 2));
     root->children()[0]->AddChild(
         LayerImpl::Create(host_impl->active_tree(), 3));
-    return root.Pass();
+    return root;
   }
 
   FakeImplTaskRunnerProvider task_runner_provider_;
   TestSharedBitmapManager shared_bitmap_manager_;
   TestTaskGraphRunner task_graph_runner_;
   FakeLayerTreeHostImpl host_impl_;
   scoped_ptr<LayerImpl> root_;
   LayerImpl* parent_;
   LayerImpl* child_;
 };
@@ skipping 205 matching lines @@
   child()->SetPosition(gfx::PointF(150.f, 50.f));
   child()->SetBounds(bounds);
 
   gfx::BoxF box;
   bool success = LayerUtils::GetAnimationBounds(*child(), &box);
   EXPECT_FALSE(success);
 }
 
 }  // namespace
 }  // namespace cc